Bryophytes Flashcards
1
Q
examples
A
mosses, liverworts, hornworts
2
Q
Vascular tissue?
A
none
3
Q
conditions for growth?
A
moist/ shady
4
Q
Structure of gametophytic and sporophytic generations (7)
A
GAMEATOPHYTIC:
Thallus- undifferentiated plant body (no true roots, stems and leaves)
Rhizoid- filamentous-anchorage and absorption
leaf and stems-like structures
SPOROPHYTIC:
foot: attach to the gametophyte
seta: hold up sporangium for spore dispersal
Sporangium: produce mature spores = disperses
calyptra- covers sporangium
5
Q
Which generation is more dominant?
A
Gametophytic
6
Q
The life cycle of bryophyte?
A
Gametophyte- diploid- produces haploid ova and sperm- sperm uses water to travel to and fertilize ova- develops into sporophytic generation- sporangium dries out and disperses spores (wind/ soil)
